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Diffstat (limited to 'src/resources/sdlgfxblitfunc.cpp')
-rw-r--r--src/resources/sdlgfxblitfunc.cpp542
1 files changed, 0 insertions, 542 deletions
diff --git a/src/resources/sdlgfxblitfunc.cpp b/src/resources/sdlgfxblitfunc.cpp
deleted file mode 100644
index d5e3268c7..000000000
--- a/src/resources/sdlgfxblitfunc.cpp
+++ /dev/null
@@ -1,542 +0,0 @@
-/*
- * The ManaPlus Client
- * Copyright (C) 2017 The ManaPlus Developers
- *
- * This file is part of The ManaPlus Client.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/*
-
-SDL_gfxBlitFunc: custom blitters (part of SDL_gfx library)
-
-LGPL (c) A. Schiffler
-
-*/
-
-#ifndef USE_SDL2
-#include "resources/sdlgfxblitfunc.h"
-
-#include "utils/cast.h"
-#include "utils/checkutils.h"
-
-PRAGMA48(GCC diagnostic push)
-PRAGMA48(GCC diagnostic ignored "-Wshadow")
-#include <SDL_video.h>
-PRAGMA48(GCC diagnostic pop)
-
-#include "debug.h"
-
-#define GFX_DUFFS_LOOP4(pixel_copy_increment, width) \
- int n = (width + 3) / 4; \
- switch (width & 3) \
- { \
- case 0: do { \
- pixel_copy_increment; \
- case 3: pixel_copy_increment; \
- case 2: pixel_copy_increment; \
- case 1: pixel_copy_increment; \
- default: ; \
- } while (--n > 0 ); \
- }
-
-namespace
-{
- struct SDL_gfxBlitInfo final
- {
- A_DEFAULT_COPY(SDL_gfxBlitInfo)
-
- Uint8 *s_pixels;
- int s_width;
- int s_height;
- int s_skip;
- Uint8 *d_pixels;
- int d_width;
- int d_height;
- int d_skip;
- void *aux_data;
- SDL_PixelFormat *src;
- Uint8 *table;
- SDL_PixelFormat *dst;
- };
-
- unsigned int GFX_ALPHA_ADJUST_ARRAY[256] =
- {
- 0, /* 0 */
- 15, /* 1 */
- 22, /* 2 */
- 27, /* 3 */
- 31, /* 4 */
- 35, /* 5 */
- 39, /* 6 */
- 42, /* 7 */
- 45, /* 8 */
- 47, /* 9 */
- 50, /* 10 */
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- 253, /* 253 */
- 254, /* 254 */
- 255 /* 255 */
- };
-} // namespace
-
-static void _SDL_gfxBlitBlitterRGBA(const SDL_gfxBlitInfo *const info)
-{
- const int width = info->d_width;
- int height = info->d_height;
- Uint8 *src = info->s_pixels;
- const int srcskip = info->s_skip;
- Uint8 *dst = info->d_pixels;
- const int dstskip = info->d_skip;
- const SDL_PixelFormat *const srcfmt = info->src;
-
- while ((height--) != 0)
- {
- GFX_DUFFS_LOOP4(
- {
- Uint32 pixel;
- uint32_t sR;
- uint32_t sG;
- uint32_t sB;
- uint32_t sA;
- uint32_t dR;
- uint32_t dG;
- uint32_t dB;
- uint32_t dA;
- uint32_t sAA;
-
- pixel = *(reinterpret_cast<uint32_t *>(src));
- sR = ((pixel & srcfmt->Rmask) >> srcfmt->Rshift);
- sG = ((pixel & srcfmt->Gmask) >> srcfmt->Gshift);
- sB = ((pixel & srcfmt->Bmask) >> srcfmt->Bshift);
- sA = ((pixel & srcfmt->Amask) >> srcfmt->Ashift);
-
- pixel = *(reinterpret_cast<uint32_t *>(dst));
- dR = pixel & 0xff;
- dG = ((pixel & 0xff00) >> 8);
- dB = ((pixel & 0xff0000) >> 16);
- dA = ((pixel & 0xff000000) >> 24);
-
- sAA = GFX_ALPHA_ADJUST_ARRAY[sA & 255];
- dR = (((sR - dR) * (sAA)) / 255) + dR;
- dG = (((sG - dG) * (sAA)) / 255) + dG;
- dB = (((sB - dB) * (sAA)) / 255) + dB;
- dA |= sAA;
-
- *(reinterpret_cast<uint32_t *>(dst)) = dR |
- (dG << 8) |
- (dB << 16) |
- (dA << 24);
-
- src += 4;
- dst += 4;
- }, width);
- src += srcskip;
- dst += dstskip;
- }
-}
-
-static int _SDL_gfxBlitRGBACall(const SDL_Surface *const src,
- const SDL_Rect *const srcrect,
- const SDL_Surface *const dst,
- const SDL_Rect *const dstrect)
-{
- /*
- * Set up source and destination buffer pointers, then blit
- */
- if ((srcrect->w != 0u) && (srcrect->h != 0u))
- {
- SDL_gfxBlitInfo info;
-
- /*
- * Set up the blit information
- */
- info.s_pixels = static_cast<Uint8 *>(src->pixels) + src->offset +
- static_cast<Uint16>(srcrect->y) * src->pitch +
- static_cast<Uint16>(srcrect->x) * src->format->BytesPerPixel;
- info.s_width = srcrect->w;
- info.s_height = srcrect->h;
- info.s_skip = CAST_S32(src->pitch - info.s_width *
- src->format->BytesPerPixel);
- info.d_pixels = static_cast<Uint8 *>(dst->pixels) + dst->offset +
- static_cast<Uint16>(dstrect->y) * dst->pitch +
- static_cast<Uint16>(dstrect->x) * dst->format->BytesPerPixel;
- info.d_width = dstrect->w;
- info.d_height = dstrect->h;
- info.d_skip = CAST_S32(dst->pitch - info.d_width *
- dst->format->BytesPerPixel);
- info.aux_data = nullptr;
- info.src = src->format;
- info.table = nullptr;
- info.dst = dst->format;
-
- /*
- * Run the actual software blitter
- */
- _SDL_gfxBlitBlitterRGBA(&info);
- return 1;
- }
-
- return 0;
-}
-
-int SDLgfxBlitRGBA(SDL_Surface *const src,
- const SDL_Rect *const srcrect,
- SDL_Surface *const dst,
- const SDL_Rect *const dstrect)
-{
- SDL_Rect sr;
- SDL_Rect dr;
- int srcx;
- int srcy;
- int w;
- int h;
-
- /*
- * Make sure the surfaces aren't locked
- */
- if (src == nullptr ||
- dst == nullptr)
- {
- reportAlways("SDLgfxBlitRGBA: passed a NULL surface");
- return -1;
- }
-
- /*
- * If the destination rectangle is NULL, use the entire dest surface
- */
- if (dstrect == nullptr)
- {
- dr.x = 0;
- dr.y = 0;
- dr.w = CAST_U16(dst->w);
- dr.h = CAST_U16(dst->h);
- }
- else
- {
- dr = *dstrect;
- }
-
- /*
- * Clip the source rectangle to the source surface
- */
- if (srcrect != nullptr)
- {
- int maxw;
- int maxh;
-
- srcx = srcrect->x;
- w = srcrect->w;
- maxw = src->w - srcx;
- if (maxw < w)
- w = maxw;
-
- srcy = srcrect->y;
- h = srcrect->h;
- maxh = src->h - srcy;
- if (maxh < h)
- h = maxh;
- }
- else
- {
- srcx = 0;
- srcy = 0;
- w = src->w;
- h = src->h;
- }
-
- /*
- * Clip the destination rectangle against the clip rectangle
- */
- const SDL_Rect *const clip = &dst->clip_rect;
- int dx;
- int dy;
-
- dx = clip->x - dr.x;
- if (dx > 0)
- {
- w -= dx;
- dr.x += dx;
- srcx += CAST_S16(dx);
- }
- dx = dr.x + w - clip->x - clip->w;
- if (dx > 0)
- w -= dx;
-
- dy = clip->y - dr.y;
- if (dy > 0)
- {
- h -= dy;
- dr.y += dy;
- srcy += CAST_S16(dy);
- }
- dy = dr.y + h - clip->y - clip->h;
- if (dy > 0)
- h -= dy;
-
- if (w > 0 && h > 0)
- {
- sr.x = CAST_S16(srcx);
- sr.y = CAST_S16(srcy);
- sr.w = dr.w = CAST_U16(w);
- sr.h = dr.h = CAST_U16(h);
- return _SDL_gfxBlitRGBACall(src, &sr, dst, &dr);
- }
-
- return 0;
-}
-
-#endif // USE_SDL2
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